Create nginx.conf

nginx.conf

@@ -0,0 +1,51 @@
+events {
+    worker_connections 1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    upstream streamlit {
+        server localhost:8501;
+    }
+
+    server {
+        listen 7860;
+        server_name localhost;
+
+        # Restricted CORS configuration for elevatics.cloud
+        add_header Access-Control-Allow-Origin "https://elevatics.cloud" always;
+        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
+        add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization" always;
+        add_header X-Frame-Options "ALLOW-FROM https://elevatics.cloud" always;
+        add_header Content-Security-Policy "frame-ancestors https://elevatics.cloud" always;
+        
+        # Handle OPTIONS method
+        if ($request_method = "OPTIONS") {
+            add_header Access-Control-Allow-Origin "https://elevatics.cloud" always;
+            add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
+            add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization" always;
+            add_header Access-Control-Max-Age 1728000;
+            add_header Content-Type text/plain;
+            add_header Content-Length 0;
+            return 204;
+        }
+
+        location / {
+            proxy_pass http://streamlit;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_redirect off;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            
+            # Additional security headers for iframe
+            add_header X-Frame-Options "ALLOW-FROM https://elevatics.cloud" always;
+            add_header Content-Security-Policy "frame-ancestors https://elevatics.cloud" always;
+        }
+    }
+}